Penelope is quite talkative when she is at home with her parents and siblings, but when faced with a new situation outside of the home, she is completely silent. Penelope likely has a condition known as:

Question

Quizplus · Accepted Answer

Selective mutism is a condition where a person is able to speak normally in certain familiar situations, but completely stops speaking in other situations, such as in school or in public. This is different from shyness, which involves being hesitant or reserved in social situations but still communicating. Social anxiety disorder is also a possibility, but selective mutism specifically refers to the inability to speak in certain situations. Phonological disorder is a speech disorder that affects the ability to produce or understand speech sounds, and does not apply to Penelope's situation.

Penelope Is Quite Talkative When She Is at Home with Her